166642296 has 32 divisors (see below), whose sum is σ = 441113040. Its totient is φ = 52279808.

The previous prime is 166642261. The next prime is 166642297. The reversal of 166642296 is 692246661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166642297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203811 + ... + 204626.

Almost surely, 2^166642296 is an apocalyptic number.

It is an amenable number.

166642296 is an abundant number, since it is smaller than the sum of its proper divisors (274470744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166642296 is a wasteful number, since it uses less digits than its factorization.

166642296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408463 (or 408459 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 166642296 is about 12909.0005809900. Note that the first 3 decimals coincide. The cubic root of 166642296 is about 550.2943834521.

The spelling of 166642296 in words is "one hundred sixty-six million, six hundred forty-two thousand, two hundred ninety-six".